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MS5908A Circuit Analyzer 110V

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This circuit analyzer is a special test device designed for AC low-voltage distribution line quick fault location.

Overview
  • Display: LCD
  • Overload: "OL" or ">"
  • Low battery voltage:""
  • Time for auto power-off: Power off when the keys aren't presses for 30 minutes.
  • Humidity: <80% Relative humidity (0°C~50°C)
  • Storage temperature:0°C~50°C < 80%
                                      Relative humidity
  • Physical dimension: 193mm(L)*78MM(W)*38(D)
  • Power source: Six AAA batteries
  • Weight: 295g (including batteries)
  • Safety rating: CE(EMC) ETL CAT III 300V RoHS
Features
Specs

Specification Accuracy Range

Line Voltage +-(1.0%+0.2) 85.0~135.0V
Peak Line Voltage +-(1.0%+0.2) 120.0~190.0V
Voltage with Loading Equipments +-(2.5%+0.2) 10.0~135.0V
Mpedance-live                                                     and Neutral & Earth +-(2.5%+0.2) 0.00~3.00Ω
unspecifed >3.00Ω
Neutral-Ground Voltage +-(2.5%+0.2) 0.0~10.0V
RCD(GFCI) Trip Time +-(1.0%+0.2) 1~6.500ms
RCD(GFCI) Trip Current +-(1.0%+0.2) 30mA(6mA)
Line Frequency +-(1.0%+0.2) 45.0~65.0Hz
% Voltage Drop +-(2.5%+0.2) 0.1~99.9%
Voltage Drop Load Current     12/15/20A

Fault Localization and trouble shooting for Voltage Problem

Measurement Item Nomal Measurement Result Fault Measurement Result Possible Cause Trouble Shooting

Phase Voltage MS5908A 108~132V(120V) The Voltage is too high or too low The Circuit is Overloaded Redistribute the Circuit Losd
High impedance Points are Found in Switchboard or Circuit Locate the high impedance and Repair or Replace Relevant Parts
The Supply Voltage is too high or too low Consult the Power Supply Department
Voltage Earth of Zero Line <2V >2V Leakage Current Find the current Source: Is there any Multipoint Ground? Does the Equipment or Device Leak Current?
Three-Phase Imbalance Check and Redistribute
Voltage Earth of Zero Line <2V >2V Harmonic Interference Increase Neutral Line Conductor, Install Electrical Filter or use Other Methods to Reduce the Harmonic Interference
Peak Voltage MS5908A 153~185V(120V) The Voltage is too high or too low The Supply Voltage is too high or too low Consult the Power Supply Department
Frequency 50Hz The Frequency is too high or too low The Supply Frequency is too high or too low Consult the Electricity Department
 

 

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